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2 years ago

7

Jake opens a credit card with 18% annual interest compounded monthly. If he charges $800 on the card and never pays it off, how

much will he owe the credit card company in 2
years? Round to the nearest cent.

1 answer:

Makovka662 [10]2 years ago

4 0

<h3>Answer: $1,143.60</h3>

Work Shown:

A = P*(1+r/n)^(n*t)

A = 800*(1+0.18/12)^(12*2)

A = 1,143.60224954321

A = 1,143.60

Notes:

P = 800 is the principal. It is the amount loaned to Jake.
r = 0.18 is the decimal form of the 18% interest rate
n = 12 because we're compounding monthly, i.e. 12 times a year
t = 2 = number of years
For more information, check out the compound interest formula.

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Answer:

52.9 inches .

Step-by-step explanation:

Given that the triangular indentation has an area of 100 in.² and the base and height of this traingle are represented by expressions 3x and x+3 respectively . We need to find out the <u>perimeter </u>to the nearest tenth.

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On using the <u>Quadratic</u><u> formula</u> , we have;

$\rm\longrightarrow x =\dfrac{-9\pm\sqrt{9^2-4(3)(-200)}}{2(3)} \\\\\rm\longrightarrow x =\dfrac{-9\pm \sqrt{81+1200}}{6}\\\\\rm\longrightarrow x =\dfrac{-9\pm \sqrt{1281}}{6}$

On simplifying above , we will get ,

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$\rm\longrightarrow h=\sqrt{ b^2+p^2}\\$

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$\rm\longrightarrow P = p + b + h \\$

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$\\\rm\longrightarrow P = 52.89 \ in.\\$

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